Pmtk Command Sending - Quectel LG77L EVB User Manual

5.2. PMTK Command Sending

The PowerGPS supports sending PMTK commands to control the module as shown in the figure below,
The PMTK command format includes only characters between '$' and '*', for example: PMTK869,0. The
checksum will be calculated and added automatically to complete the full NMEA format message.
LG77L_EVB_User_Guide

PRN G28 carrier-to-noise ratio (CNR) is 49 dB/Hz.

G stands for a GPS satellite, B for a BeiDou satellite, and S
for an SBAS satellite.

Light blue column means that the navigation data of the
satellite is in use.

PRN B3 CNR is 42 dB/Hz.

White column indicates that the navigation data of this satellite
is not in use.
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UTC time

Latitude degree

Longitude degree

Position fix

The number of satellites being used

Horizontal dilution of precision

Altitude based on WGS84 datum

UTC date

Fixing mode: No-fix, 3D or 2D SPS

Satellite being used

Position dilution of precision

Vertical dilution of precision

Receiver speed
GNSS Module Series
LG77L EVB User Guide
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